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Analog Integrated Circuits and Signal Processing

, Volume 101, Issue 3, pp 611–622 | Cite as

A novel 49-level asymmetrical modular multilevel inverter: analysis, comparison and validation

  • Ebrahim Salari
  • Ali Darvish FalehiEmail author
Article
  • 53 Downloads

Abstract

High progresses in the field of power electronic create an appropriate bed to introduce new and upgraded multilevel inverter topologies. Such these topologies contain remarkable inherent advantages like: high quality staircase sinusoidal output voltage, low number of switches, low peak inverse voltage, et cetera. In this paper, a novel modular asymmetrical multilevel inverter is proposed to reduce the number of inverter’s components, and accordingly make a cost-effective structure with excellent voltage-step creation. In accordance with the configuration of utilized switches and magnetite of DC voltage source, the proposed structure can provide a high-step staircase sinusoidal voltage without high increase of semiconductors. Consider this; symmetrical condition of the proposed structure also takes low number of switches as compared to other symmetrical structures. Finally, both the MATLAB/SIMULINK and experimental results have confirmed the accurate operation and voltage-step creation capability of the suggested multilevel inverter.

Keywords

Modular multilevel inverter Reduced structure Asymmetrical/symmetrical multilevel inverter THD 

Notes

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Electrical EngineeringKaraj Branch, Islamic Azad UniversityKarajIran
  2. 2.Department of Electrical EngineeringShadegan Branch, Islamic Azad UniversityShadeganIran

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